Door hits the floor hard when closing or bounces back slightly before stopping.

Safety first: Avoid standing under the door while adjusting limits.

• Inspect bottom seal: If a new Garador bottom seal has been fitted, note its increased thickness; the close limit must be adjusted accordingly.
• Adjust close limit: Use the limit adjustment buttons or dials on the Garador operator to reduce the closing travel slightly so the door just compresses the seal without excessive force.
• Check for bounce: Run several close cycles and watch for bounce or re‑opening. Fine‑tune the limit until the door stops smoothly.
• Verify safety reversal: Perform a contact reversal test with a solid object under the door to ensure safety functions still operate correctly.